Water heater



WATER HEATER 2 Sheets-Sheet 1 Filed March 25, 1951 Dec. 20, 1932. J. w. GUIMONT WATER HEATER Filed March 25, 1951 2 Sheets-Sheet 2 WIIJTIIIIII/I/IIIII III ln van/or J. W Gui/720271 Patented Dec. 20, 1932 UNET'ED STATEd arent oFFicE JOSEPH VJILLIAIE GUIMONT, OF LACHENE, QUEBEC, CANADA, ASSIGNOR TO HEATING v SYSTEMS LIMITED, 0F IVLGNTREAL, QUEBEC, CANADA WATER HEATER Application filed March .23, 1931. Serial No. 524,653.

The present invention relates to improvements in water heaters of'the type in which water is heated by steam, and the main object is to provide an apparatus of this charac ter that is simple of construction, effective and inexpensive to manufacture.

The invention consists particularly of an outer shell having an open end, said shell having water inlet and outlet openings and a steam inlet opening. Over the open end of the outer shell is located a cover forming a chamber adapted to collect the steam condensation. intermediate of said end and main outer shells is disposed a tube plate and adjacent the closed end of said outer shell is located a steam chest which is suitably supported upon one or more brackets preferably secured to the inner side of the wall of the shell. The steam chest and tube plate are suitably connected together by a plurality of parallel and longitudinally disposed steam pipes, and a steam supply pipe passing through the steam inlet opening in the outer shell is connected to said steam chest.

In order that the steam will expand to its fullest point into the steam pipes which are connected to the steam chest, so as to obtain effective results, it has been the practice to reduce the diameter of the inlet ends of the steam pipes. This is an expensive operation and in order to considerably reduce the cost of manufacture, it has been found that by providing holes in the steam chest of a reduced diameter, said holes extending through the steam chest wall (the holes are made through the inner wall of the steam chest) said holes communicating with holes of larger diameter. The holes of lar 'er diameter partially extend through the outer side wall of the steam chest, said holes communicating with the holes of smaller diameter, their centers being in alinement with one another, said larger holes being preferably threaded to receive the threaded ends of the pipes.

In the drawings Figure 1 is a side elevation view of a water heater according to the invention.

Figure 2 is a vertical longitudinal section through a portion of the heater; and

Figure 3 is a cross section on line 33 of Figure 1.

Like numerals of reference indicate corresponding parts in each figure.

Referring to the drawings, 1 is the outer shell ofthe heater having the open end 2 suitably flanged at 3 and the closed head or end 1- in which is preferably located the steam inlet opening 5. The said outer shell is preferably disposed horizontally, but it could readily be made to stand upright and for the purpose of supporting same the standards or legs 6 are provided.

In the lower wall of the shell adjacent the open end 2 is provided an inlet water opening 7 and 8 is an outlet water opening 10- V cated adjacent the closed upper end l.

Across the open end 2 of the outer shell is disposed the cover 9 which is provided with a flanged edge 10 registering with the flange 3 of the main outer shell and secured thereto by means of the bolts 11. In the lower wall of said cover 9 is located a condensation outlet 12 and 13 is a pipe connected in said outlet and adapted to evacuate the condensation water.

Adjacent the inner closed end 4 of the outer shell and suitably supported within it is located the steam chest 14. Said steam chest is provided with a steam inlet opening 15 in which is connected the steam supply pipe 16, said pipe passing through the steam inlet opening 5 and the gland 17, thus providing for the contraction and expansion of the steam chest within the outer shell.

The steam chest is provided with a relatively thick wall 17a in one side in which are provided in the inner side wall a plurality of holes 18, of relatively small diameter and extending through said wall, and 18a are holes of larger diameters extending partially through the outer side of the wall 17a, in register with said holes 18 the respective centers of said holes being in alinement with one another, said holes 18a being threaded to receive the threaded ends of the steam V pipes 19. The said pipes 19 extend horizontally and longitudinally within said outer shell and engage at their other ends into suitable holes 20 provided through the tube plate 21 which is secured between the flanges 3 and 10, the ends of said pipes being preferabl expanded or otherwise secured in said plate.

The cover 9 is suitably supported upon the standards or legs 22.

Connected to the Water inlet 7 and water outlet 8 are the respective pipes 23 and 21. Cold water enters through the cold water pipe 23 and inlet 7, passing through the main outer shell and around the pipes 19 and steam chest, where it is heated and then comes out through the outlet 8 and the hot water pipe 24.

The steam passes through the steam supply pipe 16, into the steam chest and enters the smaller holes 18 and passes through the pipes 19 where it expands and then condenses this condensate flowing ,into the condensation chamber formed by the cover 9, and'then passing through the outlet 12 and pipe 13.

The steam chest is preferably slidably supported upon the brackets 25 in order to allow for expansion and contraction and said brackets may be made integral with the inner wall of the outer shell.

It must readily be understood, that the size and depth of the holes 18 should be in proportion to the size of the steam inlet opening and also in proportion to the amount of steam pressure in the steam supply pipe, so that in heaters operating on low pressure the said holes will be larger in diameter. It should be noted that in securing the pipes 19 according to the present invention, time and labor will be eliminated, as compared with the methods used at the present time. An extensively used method, to reduce the steam inlet opening of the steam pipes, is to weld in the end of the pipe a nipple of smaller diameter. This is very expensive and means considerable labor.

In the present invention, the wall 17a of the steam chest is preferably thicker than usual, and the larger hole 18a should be first drilled partially through the outer side of the wall, The next operation is to drill the smaller hole throughout the remaining inner portion of the wall.

\Vhat I claim as my invention is A water heater comprising a main outershell having an open end and provided with a water inlet, a water outlet and a steam inlet located in one end thereof, a steam-chest mounted within said outer shell adjacent said steam-inlet, said steam-chest having on one side a wall of relatively greater thckness, than its adjacent walls, provided with a plurality of relatively large holes on one side thereof, a cover suitably secured to the open end of said main outer-shell, said cover having a condensation outlet, a tube plate located intermediate of said main shell and cover and adapted to form a partition wall therebetween, said tube plate having a plurality of holes, each of which are of equal diameter and in alinement with the holes of large diameters located in the wall of said steamchest, tubes suitably secured in each of said holes connecting said steam-chest with said tube plate, a steam supply pipe passing through sa d steam inlet and connected to said steam-chest, said steam-chest wall having on its inner side a plurality of holes of smaller diameter than that of said tubes, each of which communicates and registers with one of the holes of larger diameter located upon the opposite side in whi ch are secured the ends of said tubes.

JOSEPH WILLIAM GUIMONT. 

